Contacts of the helix formed by residues 144 - 171 (chain A) in PDB entry 2WWB


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with GLY 144 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  GLU*     3.2    14.1    +      -       -      -
    143A  MET*     1.4    80.9    -      -       -      +
    145A  ALA*     1.4    64.4    +      -       -      -
    146A  GLY      3.3     2.7    -      -       -      -
    147A  ILE*     3.6     9.4    +      -       -      +
    148A  CYS*     3.3    26.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  GLU*     3.1    18.2    +      -       -      +
    144A  GLY*     1.4    70.9    -      -       -      -
    146A  GLY*     1.4    58.0    +      -       -      +
    148A  CYS*     3.7     6.5    +      -       -      +
    149A  LEU*     3.1    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  GLY      3.3     0.6    -      -       -      -
    145A  ALA*     1.4    77.6    -      -       -      +
    147A  ILE*     1.4    62.4    +      -       -      +
    149A  LEU*     3.5    11.0    +      -       -      +
    150A  LEU*     3.3    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  PHE*     5.2    10.6    -      -       +      -
     53A  ILE*     5.9     5.8    -      -       +      -
    137A  TYR*     5.1     8.5    -      -       +      +
    143A  MET*     4.2    36.8    -      -       +      +
    144A  GLY*     3.6     9.5    +      -       -      +
    145A  ALA      3.4     0.4    -      -       -      -
    146A  GLY*     1.4    72.6    -      -       -      +
    148A  CYS*     1.4    64.1    +      -       -      +
    150A  LEU*     3.2    20.4    +      -       +      +
    151A  ILE*     3.3    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  VAL*     4.4    24.0    -      -       +      +
    137A  TYR*     5.2     1.6    -      -       -      -
    139A  ASP*     3.6    23.3    -      -       -      -
    142A  GLU*     5.6     3.4    -      -       -      -
    143A  MET*     3.7    17.7    -      -       -      -
    144A  GLY      3.3    20.2    +      -       -      +
    145A  ALA*     3.9     5.6    -      -       -      +
    147A  ILE*     1.4    75.9    -      -       -      +
    149A  LEU*     1.4    61.0    +      -       -      +
    151A  ILE*     3.2    18.3    -      -       -      +
    152A  THR*     2.9    22.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ALA      3.1    18.6    +      -       -      +
    146A  GLY*     3.6    10.5    -      -       -      +
    147A  ILE      3.3     0.2    -      -       -      -
    148A  CYS*     1.4    76.0    -      -       -      +
    150A  LEU*     1.4    65.8    +      -       +      +
    152A  THR*     3.3    17.8    +      -       +      -
    153A  ILE*     3.5    25.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  PHE*     3.6    38.8    -      -       +      -
    146A  GLY      3.3    15.2    +      -       -      +
    147A  ILE*     3.2    13.2    +      -       +      +
    149A  LEU*     1.4    83.3    -      -       +      +
    151A  ILE*     1.4    56.7    +      -       -      +
    153A  ILE*     3.1    33.1    -      -       +      +
    154A  GLN*     3.5    10.9    -      -       -      +
     87C  LEU*     5.7     7.7    -      -       +      +
     96C  SER*     5.6     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  LEU*     4.1     8.3    -      -       +      -
     51A  PHE*     3.2    25.7    -      -       +      +
     55A  SER*     3.7    16.8    -      -       -      +
     78A  GLU*     4.9     1.6    -      -       -      +
    132A  VAL*     4.4     9.9    -      -       +      -
    137A  TYR*     3.6    46.2    -      -       +      +
    147A  ILE      3.3     6.2    +      -       -      +
    148A  CYS*     3.2    22.9    -      -       -      +
    150A  LEU*     1.4    73.8    -      -       -      +
    152A  THR*     1.4    63.8    +      -       -      +
    154A  GLN*     3.1    15.3    +      -       +      +
    155A  LEU*     3.3    38.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  ILE*     4.5    10.8    -      -       +      +
    128A  SER*     3.7    35.1    +      -       -      +
    129A  ILE*     5.1     6.7    +      -       +      +
    132A  VAL*     5.0     5.5    -      -       -      +
    148A  CYS*     2.9    22.3    +      -       -      +
    149A  LEU*     3.3    13.7    +      -       +      -
    151A  ILE*     1.4    76.8    -      -       -      +
    153A  ILE*     1.4    64.3    +      -       +      +
    155A  LEU*     3.3     4.5    +      -       -      +
    156A  PHE*     3.2    34.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  LEU*     3.5    23.5    +      -       +      +
    150A  LEU*     3.1    37.7    -      -       +      +
    152A  THR*     1.4    77.3    -      -       +      +
    154A  GLN*     1.4    74.6    +      -       -      +
    156A  PHE*     3.9    20.4    -      -       +      -
    157A  VAL*     3.1    33.8    +      -       +      +
     80C  PHE*     4.4     1.6    -      -       -      -
     87C  LEU*     5.5     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  LEU*     4.0    16.4    -      -       +      +
     51A  PHE*     3.6    28.6    -      -       +      +
     77A  MET*     4.1    10.1    -      -       -      +
    150A  LEU      3.5    15.3    -      -       -      +
    151A  ILE*     3.1    11.6    +      -       +      +
    153A  ILE*     1.4   101.4    -      -       -      +
    155A  LEU*     1.4    62.7    +      -       -      +
    157A  VAL      3.9     4.2    +      -       -      -
    158A  ALA      4.1     4.3    +      -       -      -
     80C  PHE*     3.5    41.9    -      -       +      -
     84C  VAL*     3.5    31.7    -      -       -      +
     87C  LEU*     4.2    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  LEU*     3.9    22.4    -      -       +      -
     78A  GLU*     3.4    28.5    -      -       -      +
     79A  LEU*     3.8    32.9    -      -       +      +
     80A  GLY*     3.7    26.2    +      -       -      +
     83A  PRO*     5.6     1.1    -      -       -      +
    128A  SER*     3.6    36.6    -      -       -      +
    131A  TYR*     4.8     5.6    -      -       +      -
    132A  VAL*     5.9     2.0    -      -       +      -
    151A  ILE*     3.5    30.5    -      -       +      +
    152A  THR*     3.3     4.6    +      -       -      +
    154A  GLN*     1.4    77.5    -      -       -      +
    156A  PHE*     1.4    62.0    +      -       -      +
    158A  ALA      4.1     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  PRO*     5.8     0.9    -      -       -      -
    124A  THR*     3.1    44.1    -      -       +      +
    125A  ILE*     3.9    31.9    -      -       +      -
    128A  SER*     4.0     3.6    -      -       -      +
    152A  THR*     3.2    31.8    +      -       +      -
    153A  ILE*     3.9    26.2    -      -       +      -
    155A  LEU*     1.4    77.6    -      -       -      +
    157A  VAL*     1.4    83.2    +      -       +      +
    159A  GLY      3.4     2.6    +      -       -      -
    160A  LEU*     3.1    41.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  ILE*     3.1    23.2    +      -       +      +
    154A  GLN      4.4     0.2    -      -       -      +
    155A  LEU      3.4     0.6    -      -       -      -
    156A  PHE*     1.4    99.1    -      -       +      +
    158A  ALA*     1.4    62.1    +      -       -      +
    160A  LEU*     3.2    16.5    +      -       +      +
    161A  ILE*     3.3    25.2    +      -       +      +
     76C  MET*     4.7     7.4    -      -       +      +
     77C  SER*     5.7     0.2    -      -       -      -
     80C  PHE*     3.7    40.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ILE*     4.1     8.4    -      -       +      +
     45A  CYS*     4.2    16.4    -      -       -      -
     77A  MET*     4.1    27.1    -      -       +      -
     80A  GLY*     4.2    17.3    -      -       -      -
     81A  ILE*     4.7     2.2    -      -       -      +
    154A  GLN      4.1     4.9    +      -       -      +
    155A  LEU      4.1     0.2    +      -       -      -
    156A  PHE      3.4     0.6    -      -       -      -
    157A  VAL*     1.4    80.7    -      -       -      +
    159A  GLY*     1.4    58.8    +      -       -      +
    161A  ILE*     3.7    13.3    +      -       -      +
    162A  VAL*     3.9    14.4    -      -       -      +
     80C  PHE*     5.1     5.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  GLY      3.2    27.8    +      -       -      -
     81A  ILE*     3.9    13.9    -      -       -      -
     83A  PRO*     5.4     0.4    -      -       -      -
     84A  ILE*     3.6    10.7    -      -       -      +
    124A  THR*     4.1     7.0    -      -       -      -
    156A  PHE      3.4     4.1    +      -       -      -
    158A  ALA*     1.4    75.9    -      -       -      +
    160A  LEU*     1.4    58.6    +      -       -      +
    161A  ILE      3.4     0.2    -      -       -      -
    162A  VAL*     3.6     2.0    +      -       -      +
    163A  LEU*     3.1    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  MET*     3.9    31.0    -      -       +      +
    124A  THR*     3.8    17.9    -      -       +      +
    125A  ILE*     6.4     0.4    -      -       +      -
    156A  PHE*     3.1    38.7    +      -       +      +
    157A  VAL*     3.2    15.4    +      -       +      +
    159A  GLY*     1.4    75.6    -      -       -      +
    161A  ILE*     1.4    67.3    +      -       +      +
    163A  LEU*     3.2     3.1    +      -       +      +
    164A  LEU*     3.1    37.5    +      -       +      +
     76C  MET*     6.3     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ILE*     4.0    28.3    -      -       +      -
    157A  VAL*     3.3    23.3    +      -       +      +
    158A  ALA*     4.0     8.7    -      -       -      +
    159A  GLY      3.4     0.4    -      -       -      -
    160A  LEU*     1.4    80.1    -      -       +      +
    162A  VAL*     1.4    60.3    +      -       -      +
    164A  LEU*     3.5    12.9    +      -       +      +
    165A  LEU*     3.3    24.0    +      -       +      +
     73C  VAL*     3.8    20.1    -      -       +      +
     76C  MET*     3.6    31.4    -      -       +      -
     77C  SER*     3.4    33.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  THR*     3.9    11.6    -      -       +      +
     41A  ILE*     3.9    23.3    -      -       +      -
     42A  PHE*     3.7    37.0    -      -       +      -
     81A  ILE*     4.0    15.3    -      -       +      -
     84A  ILE*     4.0    16.6    -      -       +      -
    158A  ALA      3.9    11.0    -      -       -      +
    159A  GLY      3.6     7.8    +      -       -      +
    161A  ILE*     1.4    77.0    -      -       -      +
    163A  LEU*     1.4    55.6    +      -       -      +
    165A  LEU*     3.3     9.6    +      -       -      +
    166A  ASP*     2.8    26.3    +      -       +      +
    178A  GLY*     4.5    11.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ILE*     4.1    33.0    -      -       +      -
     87A  SER*     6.5     0.2    -      -       -      -
    117A  LYS      5.9     1.1    -      -       -      +
    120A  GLY*     3.3    38.6    -      -       -      +
    121A  MET*     3.7    22.7    -      -       +      -
    124A  THR*     3.4    14.1    -      -       -      +
    159A  GLY      3.1    17.8    +      -       -      +
    160A  LEU*     3.2     7.8    +      -       +      +
    162A  VAL*     1.4    74.3    -      -       -      +
    164A  LEU*     1.4    62.3    +      -       -      +
    166A  ASP*     3.4    18.3    +      -       +      +
    167A  GLU*     3.3    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  PRO*     5.3     5.8    -      -       +      -
     19A  ILE*     4.4    18.9    -      -       +      +
    121A  MET*     3.9    24.9    -      -       +      -
    160A  LEU*     3.1    31.7    +      -       +      +
    161A  ILE*     3.7    18.4    -      -       +      +
    162A  VAL      3.4     0.2    -      -       -      -
    163A  LEU*     1.4    74.5    -      -       -      +
    165A  LEU*     1.4    61.3    +      -       -      +
    167A  GLU*     3.4    14.5    +      -       -      +
    168A  LEU*     3.5    21.7    +      -       +      +
     67C  LYS*     5.9     4.0    -      -       +      +
     73C  VAL*     4.5    20.0    -      -       +      -
     76C  MET*     5.1    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  TRP*     4.7    10.7    -      -       +      +
     37A  ILE*     4.2    20.9    -      -       +      -
     38A  THR*     3.5    39.6    +      -       +      +
     41A  ILE*     4.1     9.0    -      -       +      -
    161A  ILE*     3.3    31.9    +      -       +      +
    162A  VAL*     3.3     6.9    +      -       -      +
    164A  LEU*     1.4    76.0    -      -       -      +
    166A  ASP*     1.4    64.0    +      -       -      +
    168A  LEU*     3.5    20.5    +      -       +      +
    169A  LEU*     3.3    27.1    +      -       -      +
     73C  VAL*     3.9    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  THR*     4.9     0.2    -      -       -      +
     84A  ILE*     5.3     4.0    -      -       +      +
    117A  LYS*     5.5     2.9    -      -       -      +
    162A  VAL*     2.8    15.2    +      -       +      +
    163A  LEU*     3.4    23.5    -      -       +      +
    164A  LEU      3.2     0.2    -      -       -      -
    165A  LEU*     1.4    73.9    -      -       -      +
    167A  GLU*     1.4    74.2    +      -       -      +
    169A  LEU*     3.1    19.1    +      -       -      +
    170A  GLN*     3.1    37.5    +      -       -      +
    178A  GLY*     3.2    26.4    +      -       -      -
    179A  ILE*     3.6    20.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  GLU*     3.7    18.6    -      -       -      +
     19A  ILE*     3.6    30.1    -      -       +      -
    117A  LYS*     3.8    44.1    -      -       -      +
    121A  MET*     4.0    16.9    -      -       +      +
    163A  LEU*     3.3    23.2    +      -       -      +
    164A  LEU      3.4     4.2    +      -       -      +
    166A  ASP*     1.4    84.2    -      -       -      +
    168A  LEU*     1.4    56.6    +      -       -      +
    169A  LEU      3.2     0.2    -      -       -      -
    170A  GLN*     3.3     5.8    +      -       -      +
    171A  LYS*     3.0    44.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ILE*     4.3    20.0    -      -       +      -
     24A  ARG*     3.3    29.9    +      -       -      +
     34A  TRP*     5.1    13.4    -      -       +      -
    164A  LEU*     3.5    19.4    +      -       +      +
    165A  LEU*     3.7    27.6    -      -       +      +
    166A  ASP      3.2     0.8    -      -       -      -
    167A  GLU*     1.4    74.8    -      -       +      +
    169A  LEU*     1.4    58.9    +      -       +      +
    171A  LYS*     4.4     2.0    -      -       +      -
    173A  TYR*     3.6    34.7    -      -       +      +
     67C  LYS      4.1    17.0    -      -       -      +
     68C  VAL*     3.8    17.3    -      -       +      -
     70C  PRO      5.9     2.9    -      -       -      +
     73C  VAL*     5.8     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  LYS      4.4     0.2    -      -       -      +
     34A  TRP*     4.1    12.1    -      -       +      -
     35A  THR*     3.4    36.3    -      -       -      +
     38A  THR*     3.8    17.3    -      -       -      +
    165A  LEU      3.3    19.5    -      -       -      +
    166A  ASP*     3.1     6.3    +      -       -      +
    168A  LEU*     1.4    75.9    -      -       -      +
    170A  GLN*     1.4    72.2    +      -       -      +
    171A  LYS      3.3     3.3    +      -       -      -
    172A  GLY*     3.9     2.1    +      -       -      -
    173A  TYR      3.9     2.6    +      -       -      +
    174A  GLY*     3.4    38.1    +      -       -      +
    176A  GLY      3.9     9.7    -      -       -      +
    177A  SER      3.8    30.3    -      -       -      +
    178A  GLY*     3.9     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  LYS*     4.7    19.5    -      -       -      -
    166A  ASP*     3.1    39.6    +      -       -      +
    167A  GLU*     3.3     6.5    +      -       -      +
    169A  LEU*     1.4    88.8    -      -       -      +
    171A  LYS*     1.4    57.9    +      -       +      +
    172A  GLY      3.2     8.4    +      -       -      -
    176A  GLY      3.7    11.5    +      -       -      +
    177A  SER*     3.9    11.4    +      -       -      -
    179A  ILE*     5.7     3.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  GLU*     3.4    44.8    +      -       -      +
     19A  ILE*     4.4    11.4    -      -       +      +
     21A  LYS*     5.7    10.8    -      -       +      +
     24A  ARG*     3.6    28.4    +      -       -      +
     26A  ILE*     5.7     0.3    -      -       -      +
    117A  LYS*     6.0     1.3    -      -       -      -
    167A  GLU*     3.0    35.6    +      -       +      +
    168A  LEU*     4.9     0.7    -      -       -      +
    169A  LEU      3.3     0.6    -      -       -      -
    170A  GLN*     1.4    76.5    -      -       -      +
    172A  GLY*     1.4    62.2    +      -       -      +
    173A  TYR*     3.4     2.6    +      -       -      +
     61C  GLU*     3.7    18.0    +      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il